PVC Pipe Sewer And Drain 90-Degree Elbow, 4-In. - Princeton, MN - Marv's True Value
1 in. Schedule 40 PVC Pipe 90-Degree Slip x Slip Elbow Fitting (200-Pack) 406-010-200-P - The Home Depot
Schedule 40, 4 in x 4 in Fitting Pipe Size, 90° Street Elbow - 1WKB6|1WKB6 - Grainger
Amazon.com: NDS 4P02 PVC 90-Degree Elbow, X Hub solvent-weld connections, for Use with 4-Inch Sewer and Drain Pipes, White, 1 Count (Pack of 1) : Everything Else